Trim Policies

Trim policies are used to delete old backups and local snapshots. They help to save disk space remote and locally.

Note

A trim policy is a string of characters. Each character represents a backup type.

F for full backups/snapshots

I for incremental backups/snapshots

Note

The policy applies FIFO (first in first out) to the backups/snapshots. Older snapshots/backups are deleted first.

Note

The arrangement of the characters does not matter. Example: FIFIF is the same as IIIFFF.

Remote Trim Policy

The remote trim policy deletes backups on the blob storage to free up space.

It can be configured via the remote_trim_policy field in the config file.

Example Policy:

remote_trim_policy: IFIFIF

Translates to: Always keep the last 3 full backups and the last 3 incremental backups.

How to execute a remote trim policy

Run the trim-remote command to execute a remote trim policy for a group.

Local Trim Policy

The local trim policy deletes snapshots locally to free up space.

It can be configured via the local_trim_policy field in the config file.

Example Policy:

local_trim_policy: FFFF

Translates to: Always keep the last 4 full backups/snapshots.